<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/users/add" method="post">
    name : <input type="text" name="name"><br>
    age : <input type="number" name="age"><br>
    balance: <input type="text" name="balance"><br>
    mail: <input type="email" name="email"> <br>
    <input type="submit">
</form>
</body>
</html>